President Obama issued a new executive order Friday, which begins with a litany of increasing extreme weather events he claims are caused by global warming and uses to justify circumventing Congress to foist his climate change agenda on the country.

Months after Adam Lanza massacred 26 students and faculty and committed suicide at Sandy Hook Elementary in Newtown, Connecticut, questions still abound in the midst of conspiracy theories and prolonged speculation about unreleased investigative reports, toxicology tests, 911 calls, and the building demolition.

The House Committee on Veterans' Affairs is investigating whether psychiatric medications such as Trazodone played a role in last week's mass shooting at the Washington Navy Yard, where former reservist-turned-military contractor Aaron Alexis killed 12 people and injured three.

The U.S. Department of Energy's National Energy Technology Laboratory finds that chemicals used in oil and natural gas drilling known as hydraulic fracturing or "fracing" pose no threat to groundwater or drinking water supplies, despite popular claims.

A new study published in Science Magazine claims Earth is experiencing an unprecedented global-warming period due to human-caused climate change and greenhouse gases, poised to reach record-breaking temperatures by the end of this century, but evidence from the Medieval Warm Period suggests otherwise.